The OMbra is a smart bra that can measure a woman’s biometrics – heart rate, breathing rate, calories burned, and other metrics. The data is recorded is recorded through a sensor located in the lower band of the bra that runs along the rib cage. That data is then wirelessly transferred to the OmSignal mobile app. That app has a feature called OmRun that measures distance, pace, breathing rhythm, and fatigue levels during cardio workouts. The bra is available for $150.